Competitition starts to demonstrate close air support by UAVs

http://www.flightglobal.com/articles/2010/09/23/347692/competitition-starts-to-demonstrate-close-air-support-by.html

A $47 million contract now in competition will challenge defence companies to prove that even unmanned air vehicles can be trusted to strike targets close to friendly troops.

The US Defense Advanced Research Projects Agency has issued a request for proposals for the persistent close air support (PCAS) project, which could lead to a live-fire demonstration in four years.